PS501 datasheet(32/42 Pages) MICROCHIP

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PS501

DS21818C-page 32

 2004 Microchip Technology Inc.

TABLE 9-6:

SBData SETTINGS

WakeLevels

255

b11000110 Wake-up Voltage:

WakeUp (2:0)

Voltage

Purpose

000

6.4V

2 cells Li Ion

001

6.66V

2 cells Li Ion

010

8.88V

2 cells Li Ion

011

9.6V

3 cells Li Ion

100

9.99V

3 cells Li Ion

101

11.1V

3 cells Li Ion

110

12.8V

4 cells Li Ion

111

13.3V

4 cells Li Ion

Parameter

Name

Bytes

Lower

Limit

Upper

Limit

Typical

Value

Operational Description

HighTempAl

255

200

OVER_TEMP_ALARM threshold bit in AlarmWarning register,

0.1°C increments, Coded value = (Celsius * 10 + 200)/4. When

the temperature exceeds HighTempAl, the

OVER_TEMP_ALARM becomes active. If charging, the

TERMINATE_CHARGE_ALARM also becomes active.

NChrgBroadcast

255

Frequency of charging condition broadcasts.

RemCapAl

65535

440

SBData value for RemCapAl. The SBData specification requires

a default of DesignCapacity/10 for this value. When the remaining

capacity calculation reaches the value of RemCapAl, the

REMAINING_CAPACITY_ALARM bit will be set in the

BatteryStatus register and an alarm broadcast to the Host will

occur if alarm broadcasts are enabled.

RemTimeAl

65535

SBData value for RemTimeAl. SBData requires a default of

10 minutes for this value. When the RunTimeToEmpty

calculation reaches the value of RemTimeAl, the

REMAINING_TIME_ALARM bit in the BatteryStatus register will

be set.

TCAVolt

65535

4400

Cell voltage when the battery sends

TERMINATE_CHARGE_ALARM. This is a voltage higher than

the End-Of-Charge voltage that will trigger a

TERMINATE_CHARGE_ALARM in case EOC is not responded

to by the charger.

TABLE 9-5:

PS501 SETTINGS (CONTINUED)

Parameter

Name

Bytes

Lower

Limit

Upper

Limit

Typical

Value

Operational Description

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